On one of Shingu's mysteries

Author,
in reply to my remark that I'm happy about Muryou's
mysteries not being explained:

Oh, brother. I am pretty sure this was unintentional, based on the
small exposition fragment in the end (with chibi Muryo in a Roman
toga). [...]

That bit is actually an important part of what makes the Muryou
situation work for me. If the show left it out and simply ignored the
mystery, we would be left not knowing whether or not this omission was
deliberate; after all, maybe the show just ran out of time, didn't get a
planned sequel, forgot about it, or whatever. By explicitly addressing
the mystery the way it did, the show reassures us (well, me) that the
state of affairs is fully intentional; what Muryou is and where he comes
from is supposed to be a mystery that is not answered.

(I have a general attitude on unaddressed mysteries in shows that does
not fit inside the margins of this entry. Maybe someday.)